CA2010136A1 - Methode pour reduire les artefacts en imagerie de projection - Google Patents
Methode pour reduire les artefacts en imagerie de projectionInfo
- Publication number
- CA2010136A1 CA2010136A1 CA002010136A CA2010136A CA2010136A1 CA 2010136 A1 CA2010136 A1 CA 2010136A1 CA 002010136 A CA002010136 A CA 002010136A CA 2010136 A CA2010136 A CA 2010136A CA 2010136 A1 CA2010136 A1 CA 2010136A1
- Authority
- CA
- Canada
- Prior art keywords
- tomographic
- imaged object
- projection
- projection set
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000003384 imaging method Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000003247 decreasing effect Effects 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 abstract description 16
- 230000001133 acceleration Effects 0.000 description 15
- 230000008569 process Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000002591 computed tomography Methods 0.000 description 6
- 238000013519 translation Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000003325 tomography Methods 0.000 description 4
- 238000013170 computed tomography imaging Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 229940121896 radiopharmaceutical Drugs 0.000 description 2
- 239000012217 radiopharmaceutical Substances 0.000 description 2
- 230000002799 radiopharmaceutical effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 101100536354 Drosophila melanogaster tant gene Proteins 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/60—Rotation of whole images or parts thereof
- G06T3/608—Rotation of whole images or parts thereof by skew deformation, e.g. two-pass or three-pass rotation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Pulmonology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Image Processing (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/371,332 US5046003A (en) | 1989-06-26 | 1989-06-26 | Method for reducing skew image artifacts in helical projection imaging |
US371,332 | 1989-06-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2010136A1 true CA2010136A1 (fr) | 1990-12-26 |
Family
ID=23463526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002010136A Abandoned CA2010136A1 (fr) | 1989-06-26 | 1990-02-15 | Methode pour reduire les artefacts en imagerie de projection |
Country Status (5)
Country | Link |
---|---|
US (1) | US5046003A (fr) |
EP (1) | EP0405862A1 (fr) |
JP (1) | JPH0620451B2 (fr) |
CA (1) | CA2010136A1 (fr) |
IL (1) | IL94714A0 (fr) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0787835B2 (ja) * | 1990-06-27 | 1995-09-27 | 株式会社東芝 | X線断層撮影装置 |
JP2607749B2 (ja) * | 1990-11-01 | 1997-05-07 | 株式会社東芝 | X線ct装置 |
US5454019A (en) * | 1991-03-15 | 1995-09-26 | Hitachi, Ltd. | Computed tomography system |
IL98945A0 (en) * | 1991-07-24 | 1992-07-15 | Elscint Ltd | Multiple slice ct scanner |
DE4137031C1 (en) * | 1991-11-11 | 1993-04-08 | Siemens Ag, 8000 Muenchen, De | Computer tomograph equipment providing three=dimensional scanning - relatively rotates measuring unit, consisting of X=ray radiator and radiation detector, and patient couch |
JP2933107B2 (ja) * | 1992-02-14 | 1999-08-09 | 株式会社東芝 | Ct装置 |
US5357429A (en) * | 1992-04-02 | 1994-10-18 | Levy Richard A | Three-dimensional model generation using multiple angle tomographic scan planes |
US5224136A (en) * | 1992-06-30 | 1993-06-29 | General Electric Company | Helical scanning computed tomography apparatus with constrained tracking of the x-ray source |
US5386446A (en) * | 1992-07-06 | 1995-01-31 | Kabushiki Kaisha Toshiba | Positional adjustment of resolution in radiation CT scanner |
US5291402A (en) * | 1992-08-07 | 1994-03-01 | General Electric Company | Helical scanning computed tomography apparatus |
EP1295560B1 (fr) | 1992-08-07 | 2007-10-03 | General Electric Company | Appareil de tomographie à balayage hélicoidal, avec un agencement de détecteurs disposés en une pluralité de rangées |
US5524130A (en) * | 1992-08-28 | 1996-06-04 | Kabushiki Kaisha Toshiba | Computed tomography apparatus |
JPH06327667A (ja) * | 1993-05-27 | 1994-11-29 | Gijutsu Kenkyu Kumiai Iryo Fukushi Kiki Kenkyusho | X線ct装置 |
US5513237A (en) * | 1993-11-26 | 1996-04-30 | Kabushiki Kaisha Toshiba | Computerized tomography apparatus |
US5740224A (en) * | 1994-09-27 | 1998-04-14 | University Of Delaware | Cone beam synthetic arrays in three-dimensional computerized tomography |
IL116738A0 (en) * | 1995-01-23 | 1996-05-14 | Gen Electric | Detector z-axis gain correction for a ct system |
US5744802A (en) * | 1995-10-25 | 1998-04-28 | Adac Laboratories | Image generation from limited projections in positron emission tomography using multi-slice rebinning |
WO1999040536A1 (fr) * | 1998-02-10 | 1999-08-12 | Ey Laboratories, Inc. | Systeme de reflectometrie avec compensation pour topologie de supports d'echantillons et avec elimination synchrone du bruit de reseau |
US6522712B1 (en) | 1999-11-19 | 2003-02-18 | General Electric Company | Reconstruction of computed tomographic images using interpolation between projection views |
US6539074B1 (en) | 2000-08-25 | 2003-03-25 | General Electric Company | Reconstruction of multislice tomographic images from four-dimensional data |
US7848790B2 (en) * | 2002-02-28 | 2010-12-07 | General Electric Company | System and method of imaging using a variable speed for thorax imaging |
JP4172753B2 (ja) * | 2002-04-03 | 2008-10-29 | 東芝医用システムエンジニアリング株式会社 | X線画像撮影装置 |
US6816567B2 (en) * | 2002-07-15 | 2004-11-09 | Ge Medical System Global Technology Company, Llc | System and method for acquiring x-ray data |
US6970531B2 (en) | 2002-10-07 | 2005-11-29 | General Electric Company | Continuous scan RAD tomosynthesis system and method |
DE10322139A1 (de) * | 2003-05-16 | 2004-12-09 | Siemens Ag | Verfahren zur Erzeugung von CT-Bildern von einem sich zumindest teilweise zyklisch bewegenden Untersuchungsobjekt, sowie CT-Gerät zur Durchführung dieses Verfahrens |
US7412029B2 (en) | 2003-06-25 | 2008-08-12 | Varian Medical Systems Technologies, Inc. | Treatment planning, simulation, and verification system |
JP2005040582A (ja) * | 2003-07-07 | 2005-02-17 | Ge Medical Systems Global Technology Co Llc | X線ct撮像方法およびx線ct装置 |
FR2860874A1 (fr) * | 2003-10-08 | 2005-04-15 | Gen Electric | Systeme et procede de tomosynthese rad a balayage continu |
US7394887B2 (en) * | 2004-10-15 | 2008-07-01 | General Electric Company | Method and apparatus for reconstruction of tilted cone beam data |
DE102004051170B4 (de) * | 2004-10-20 | 2015-03-05 | Siemens Aktiengesellschaft | Computertomographiegerät mit gleichzeitiger kontaktloser elektrischer Übertragung von Versorgungsspannung und Mess- und Steuerdaten |
JP2006185038A (ja) * | 2004-12-27 | 2006-07-13 | Ge Medical Systems Global Technology Co Llc | 4次元ラベリング装置、n次元ラベリング装置、4次元空間フィルタ装置およびn次元空間フィルタ装置 |
JP2007236662A (ja) * | 2006-03-09 | 2007-09-20 | Ge Medical Systems Global Technology Co Llc | X線ct装置およびそのx線ct画像再構成方法、x線ct画像撮影方法。 |
JP4322894B2 (ja) * | 2006-06-20 | 2009-09-02 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | X線ct装置 |
JP5085305B2 (ja) * | 2007-12-21 | 2012-11-28 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | X線ct装置 |
EP2675359B1 (fr) | 2011-02-18 | 2019-08-07 | Koninklijke Philips N.V. | Algorithme(s) de mouvement d'un support de sujet de système d'imagerie |
WO2012173597A1 (fr) * | 2011-06-14 | 2012-12-20 | Analogic Corporation | Scanner de sécurité |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1540099A (en) * | 1976-01-21 | 1979-02-07 | Emi Ltd | Radiography |
DE3126643A1 (de) * | 1981-07-06 | 1983-01-20 | Siemens AG, 1000 Berlin und 8000 München | "strahlendiagnostikgeraet" |
JPS59111738A (ja) * | 1982-12-16 | 1984-06-28 | 株式会社東芝 | X線断層撮影装置 |
DE8703190U1 (de) * | 1987-03-02 | 1988-06-30 | Siemens AG, 1000 Berlin und 8000 München | Computertomograph |
US4789929A (en) * | 1987-05-14 | 1988-12-06 | Hitachi Medical Corporation | CT system for spirally scanning subject on a movable bed synchronized to X-ray tube revolution |
US4899283A (en) * | 1987-11-23 | 1990-02-06 | American Science And Engineering, Inc. | Tomographic apparatus including means to illuminate the bounded field of view from a plurality of directions |
NL8800321A (nl) * | 1988-02-10 | 1989-09-01 | Philips Nv | Computertomografie-inrichting voor spiraalsgewijze aftasting. |
-
1989
- 1989-06-26 US US07/371,332 patent/US5046003A/en not_active Expired - Fee Related
-
1990
- 1990-02-15 CA CA002010136A patent/CA2010136A1/fr not_active Abandoned
- 1990-06-13 IL IL94714A patent/IL94714A0/xx not_active IP Right Cessation
- 1990-06-22 EP EP90306863A patent/EP0405862A1/fr not_active Ceased
- 1990-06-22 JP JP2163057A patent/JPH0620451B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
IL94714A0 (en) | 1991-04-15 |
JPH03103229A (ja) | 1991-04-30 |
EP0405862A1 (fr) | 1991-01-02 |
US5046003A (en) | 1991-09-03 |
JPH0620451B2 (ja) | 1994-03-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FZDE | Discontinued |